CN104428558B - air spring strut assembly - Google Patents
air spring strut assembly Download PDFInfo
- Publication number
- CN104428558B CN104428558B CN201380035026.3A CN201380035026A CN104428558B CN 104428558 B CN104428558 B CN 104428558B CN 201380035026 A CN201380035026 A CN 201380035026A CN 104428558 B CN104428558 B CN 104428558B
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- China
- Prior art keywords
- air
- corrugated tube
- spring
- strut assembly
- air spring
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- 238000009423 ventilation Methods 0.000 claims abstract description 15
- 239000013536 elastomeric material Substances 0.000 claims abstract description 5
- 239000000203 mixture Substances 0.000 description 4
- 230000006378 damage Effects 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 208000031481 Pathologic Constriction Diseases 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000001467 acupuncture Methods 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000003534 oscillatory effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 210000001215 vagina Anatomy 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/38—Covers for protection or appearance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G15/00—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type
- B60G15/08—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having fluid spring
- B60G15/12—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having fluid spring and fluid damper
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/02—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
- F16F9/04—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum in a chamber with a flexible wall
- F16F9/05—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum in a chamber with a flexible wall the flexible wall being of the rolling diaphragm type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/06—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
- F16F9/08—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid where gas is in a chamber with a flexible wall
- F16F9/084—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid where gas is in a chamber with a flexible wall comprising a gas spring contained within a flexible wall, the wall not being in contact with the damping fluid, i.e. mounted externally on the damper cylinder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/30—Spring/Damper and/or actuator Units
- B60G2202/31—Spring/Damper and/or actuator Units with the spring arranged around the damper, e.g. MacPherson strut
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2230/00—Purpose; Design features
- F16F2230/10—Enclosure elements, e.g. for protection
- F16F2230/105—Flexible, e.g. bellows or bladder
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The present invention relates to a kind of air spring strut assembly (1), this air spring strut assembly includes air spring (2) and vibroshock (3) and is used for the vibration of motor-vehicle chassis being decayed and flexibly supporting, this air spring strut assembly is clamped between the vehicle body of motor vehicles and chassis, and this air spring strut assembly includes：Air-spring bellows (6) being clamped in air impervious mode between air spring lid (4) and air-spring piston (5), being made up of elastomeric material, this air-spring bellows scrolling on air-spring piston in the case of forming scrolling scrimp portion (7)；The outer guide part (9) of air-spring bellows (6) is surrounded in the form of covering；Corrugated tube (10), this ripple protection of pipe scrolling scrimp portion (7) avoids pollution and this corrugated tube fixation is on the end of the dorsad air spring lid (4) of outer guide part (9)；Ventilation unit, for being aerated to the space (12) being surrounded by corrugated tube (10), wherein, described ventilation unit includes the vent (13) on the end towards chassis of corrugated tube (10), it is provided with other additional vent (14) in corrugated tube (10), described vent promotes the air stream in the internal direction towards chassis of corrugated tube (10).
Description
Technical field
The present invention relates to a kind of air spring strut assembly, this air spring strut assembly includes air spring and vibroshock
And be used for the vibration of motor-vehicle chassis being decayed and flexibly supporting, this air spring strut assembly is clamped in the car of motor vehicles
Between body and chassis, this air spring strut assembly includes：Live with air-spring piston/air spring scrolling in air spring lid
Air-spring bellows being clamped in air impervious mode between plug, being made up of elastomeric material, this air-spring bellows exists
Formed scrolling scrimp portion in the case of on air-spring piston scrolling；The outer guiding of air-spring bellows is surrounded in the form of covering
Portion；Corrugated tube, this ripple protection of pipe scrolling scrimp portion avoid pollute and this corrugated tube fixation outer guide part dorsad air
On the end of spring cup.
Background technology
It is clamped between chassis and vehicle body and there is air spring strut assembly or the air spring of air-spring bellows
Multiple embodiments are known, wherein, this air-spring bellows is fixed between air spring lid and piston again.Air
Spring is in operation and is under internal superpressure.
Air-spring bellows are rolled up in spring movement under a load and on the outline of concentric air-spring piston
Dynamic composition scrolling scrimp portion, on the cylindrical tube that this air-spring piston is fixed on vibroshock in air spring strut assembly.
Using the air-spring bellows of thin-walled form as far as possible in the air spring in passenger car field, because these are thin
The air-spring bellows of wall form guarantee high scrolling comfortableness.In order to realize the enough of whole system in this air spring
Bearing capacity, air-spring bellows or air spring or air-supported shock absorber are provided with so-called outer guide part, that is, are provided with encirclement
The tubular sleeve pipe of air-spring bellows is as " support collar " or support.So can be for example using thin light metal set as propping up
Hold in the case that the body acupuncture abnormal flavour good at the same time to high intrinsic pressure and then high bearing capacity is removed and optimize thin air bullet
Spring air bag.Outer guide part here is so constituted and setting is so that air-spring bellows one side can be in air-spring piston
Scrolling on outside and on the other hand scrolling on the inner surface of outer guide part.
Disadvantage thereof however is that, such air-spring bellows compared to heavy wall form in commercial car field and continue
And more durable air-spring bellows can make sensitivity to the precipitate on scrolling face or the foreign body even licking
Many reactions.Comfortable air-spring bellows the reaction licking precipitate or foreign body is made is very easy to it with gold
The significantly abrasion of reinforcement supporting member/reinforcement base fabric or destruction that silver-colored fillagree is made, this can lead to the fault of air spring.
In order to exclude this situation, particularly in the air spring of exterior guiding, apply corrugated tube, so that protection air
Spring air bag avoids polluting (small stone for example on travelling operating dust, sand and road), and this point is for example by literary composition
Offer known to DE 103 02 495 A1.However, being by the problem applying corrugated tube to produce, in the spring movement of air spring
In, the volume of air in the space being surrounded by corrugated tube changes and then inevitable in the air by ripple duct occlusion and outer simultaneously
There is gas exchange between the air of portion's pollution.
For this reason, for example air spring assembly known to document DE 10 2,009 003 829 A1 has to guide outside
The ventilation unit of the vent form in the flange in portion, flange the exceeding described in air spring assembly of its China and foreign countries' guide part
Towards chassis in the position of head.The ventilation of corrugated tube also just occurs on the bottom of corrugated tube.
Air spring strut assembly is generally fixed as far as possible and hermetically realizes corrugated tube on the side in dorsad track
Connection, thus there is not gas exchange or a small amount of gas exchange only occur in here.Thus it should be ensured that, there is no dirt
Thing can enter into bellows interior from top, and the dirt of the direction entrance towards chassis can reach again by suction
Outside.
Lead to situations below in corrugated tube towards the corrugated tube ventilation arrangement on the bottom on chassis, that is, in air bullet
In the elastic movement of spring due in adjoint bellows interior volume reduce by air downwardly chassis direction discharge, with
When air-spring bellows the region of one of bearing-surface increase is discharged on outer guide part and covers on air-spring piston
The region of potential pollution.
Because the volume in bellows interior increases the air of potential pollution in the ejection/rebound motion of air spring
Suck from below, simultaneously air-spring bellows cover on outer guide part the increase of bearing-surface and the region of potential pollution and
Bearing-surface is exposed on piston.
Therefore disadvantageously, in spring movement, dust and/or foreign body are drawn in bellows interior.Produced problem
It is, these materials again do not reach outside but are trapped in the scrolling region of air-spring bellows, are lost by this corrugated tube
Go its defencive function needing and the situation not excluding air-spring bellows damage.
Content of the invention
Therefore it is an object of the invention to.A kind of air spring strut assembly of following improvement is provided, wherein can avoid
Described shortcoming.
This purpose is realized by the air spring strut assembly with following characteristics according to the present invention.Sky according to the present invention
Gas strut assembly includes air spring and vibroshock and is used for the vibration of motor-vehicle chassis being decayed and flexibly supporting,
This air spring strut assembly is clamped between the vehicle body of motor vehicles and chassis, and this air spring strut assembly includes：In air
Air spring gas being clamped in air impervious mode between spring cup and air-spring piston, being made up of elastomeric material
Capsule, this air-spring bellows scrolling on air-spring piston in the case of forming scrolling scrimp portion；Surrounded in the form of covering
The outer guide part of air-spring bellows；Corrugated tube, this ripple protection of pipe scrolling scrimp portion avoids pollution and this corrugated tube is fixed
On the end of the dorsad air spring lid of outer guide part；Ventilation unit, for being aerated to the space being surrounded by corrugated tube,
Wherein, described ventilation unit is included in corrugated tube towards the vent on the end on chassis, is provided with other in corrugated tube
Additional vent, described vent promotes the air stream in the direction towards chassis in bellows interior, wherein, described additional
The region of vent in be provided with device for controlling the air stream in bellows interior.By other vent, flow
Situation particularly substantially changes in ejecting motion, such that it is able to substantially reduce the air being sucked in bellows interior.
Advantageously, according to an improvement project of the present invention, the flow resistance of described additional vent is less than vent
Flow resistance.More substantial air therefore can be aspirated by additional vent, described air with by corrugated tube
The air stream superposition of the vent on bottom.
According to a favourable form of implementation of the present invention, described additional vent follows corrugated tube on outer guide part
Fixed area setting.This region is designed generally cylindrical in shapely, thus additional vent can be arranged by simple mode
Wherein.
But be likely to according to an alternative form of implementation of the present invention in the case of the corrugated tube of elongated composition
It is that described additional vent is arranged in the middle section of corrugated tube.
Preferably, it is provided with check device in the region of described additional vent, this check device is at least so that air
It is difficult to flow out from corrugated tube.The undesirable air towards air-spring bellows direction can thus be stoped in springing into motion
Stream.
One according to the present invention is advantageously improved scheme, is provided with for controlling in the region of described additional vent
In the device of the air stream of bellows interior, such that it is able to guarantee, by additional vent leaked-in air from scrolling scrimp
Portion deviates.
Preferably, described check device is designed for controlling the air stream in bellows interior simultaneously.This two functions
Total implementation scheme is especially a simplified the assembling of air spring.
According to one simple and the form of implementation of cost advantages, permissible as the check device being simultaneously used for air flow control
It is provided with the rubber element of annular, this rubber element covers additional vent on the inner side of corrugated tube.
In order to simplify the fixation of ring-shaped rubber element, according to a favourable form of implementation, the rubber element of described annular
Can be fixedly disposed between outer guide part and the retaining element of corrugated tube.
Another favourable form of implementation of the present invention is designed as, be provided with the region of described additional vent one or
Multiple filter elements.The air that pollution thus can be stoped passes through additional vent suction.
Brief description
The other feature of the present invention, advantage and application possibility are by the following description of each embodiment and with reference to the accompanying drawings
Draw.Respectively highly schematically and shown in sectional view：
Fig. 1：The local according to the first embodiment of the present invention of air spring strut assembly during springing into motion；
Fig. 2：According to the air spring strut assembly of Fig. 1 during ejecting motion；
Fig. 3：The local according to the second embodiment of the present invention of air spring strut assembly；
Fig. 4：The local according to the third embodiment of the present invention of air spring strut assembly.
Specific embodiment
Fig. 1 and 2 shows first of the air spring strut assembly 1 according to the present invention in the sectional view of high-level schematic
The local of embodiment, this air spring strut assembly is clamped between the vehicle body of motor vehicles and chassis, for motor-vehicle chassis
Vibration decayed and flexibly supported and include air spring 2 and the vibroshock 3 being arranged concentrically.
Air spring 2 have being clamped in air impervious mode between air spring lid 4 and air-spring piston 5,
The air-spring bellows 6 being made up of elastomeric material.Air-spring bellows 6 are under a load and in spring movement concentric
On the outline of air-spring piston 5, to form scrolling scrimp portion 7, this concentric air-spring piston is fixed on vibroshock to scrolling
On 3 cylindrical tube 8.
Air spring 2 also has to cover the outer guide part 9 that form surrounds air-spring bellows 6, and this outer guide part is fixed on
In air spring lid 4 and so constitute so that air-spring bellows 6 can be on the one hand on the outside of air-spring piston 5
And another aspect scrolling on the inner surface of outer guide part 9.
Corrugated tube 10 by means of retaining element 11 fixing on the end of the dorsad air spring lid 4 of outer guide part 9 and
Protection scrolling scrimp portion 7 avoids polluting.Due to using corrugated tube 10, in the spring movement of air spring 2, wrapped by corrugated tube 10
The volume of air in the space 12 enclosed changes simultaneously.In order to carry out gas between the air closed by corrugated tube 10 and air
Exchange, on the end towards chassis of corrugated tube 10, that is, vent 13 is provided with the bottom of corrugated tube 10 as logical
Wind apparatus.This vent 13 can be formed as different degrees of specific form, for example formed as straight passage, labyrinth type part
Deng.
In known ventilation unit on the bottom of corrugated tube 11 the disadvantage is that, particularly in ejecting motion, dust
And/or foreign body may be sucked in bellows interior.If these granules reach outside again, but are trapped in air
In the scrolling region of spring air bag 6, then corrugated tube 10 loses the damage of its necessary defencive function and air-spring bellows
Situation is not excluded.
Therefore, the air spring strut assembly 1 according to the present invention described further below have another in corrugated tube 10
Outer additional vent 14, this additional vent promote inside corrugated tube 10 towards chassis direction air stream.As
Lower described, by additional vent 14, mobility status particularly substantially change in ejecting motion, such that it is able to significantly subtract
It is sucked into the air in bellows interior less.
Additional vent 14 is followed fixed area on outer guide part 9 for the corrugated tube 10 and is arranged and have and compares vent
13 less flow resistances, thus more substantial air can be sucked by additional vent 14, this air with by ripple
The air stream superposition of the vent 13 on the bottom of stricture of vagina pipe 10.
Being indicated by the arrow, check device 15 in the region of additional vent 14 is so that air is difficult to from ripple
Pass through additional vent 14 in pipe 10 to flow out or stop air from passing through additional vent outflow from this corrugated tube, this is special
Not being is far reaching in spring movement.
In addition can be provided with the region of additional vent 14 for the air stream 16 within controlling in corrugated tube 10
Device, such that it is able to guarantee, deviateed from scrolling scrimp portion 7 by additional vent 14 leaked-in air.
Fig. 1 shows the first embodiment in springing into motion (compression motion in other words) (illustrating by arrow 17), its
In the space 12 in bellows interior reduce and air (being illustrated by arrow 18) pass through on the bottom of corrugated tube 10
Vent 13 is discharged outward towards the direction on chassis.Meanwhile, the bearing-surface that air-spring bellows 6 discharge on outer guide part 9
Region increases, and covering on air-spring piston 5 may contaminated region.Make springing in motion by check device 15
Mobility status keep constant compared to known ventilation unit.
(indicate) this ejection campaign by arrow 17 in the ejection campaign (extensional motion in other words) of air spring 2
It is shown in fig. 2, because the volume in bellows interior increases, may contaminated air 18 be sucked from below.Same space-time
Gas spring air bag 6 on outer guide part 9 (and) cover increase and may contaminated bearing-surface region, this air spring
Air bag discharges bearing-surface on air-spring piston 5.
Compared to known ventilation unit, by additional vent 14, mobility status significantly change in ejecting motion.
Now, the air 18 of pollution is sucked and is sucked by the vent 14 on additional top not only by the vent 13 of bottom
(being illustrated by arrow 19).Because the flow resistance of additional vent 14 is less, suck a small amount of at the ventilation unit of bottom
Air 18.The substantial amounts of air 19 in top suction is flowed in corrugated tube volume under the lower seamed edge 20 of outer guide part 9, because
It is to reduce on the lower seamed edge 20 of outer guide part 9 and thus empty in the volume between outer guide part 9 and air-spring piston 5
Gas is extruded from this region.By for controlling the device of air stream 16 to support the air 19 frontage and airiness mouth 13 of suction
The flow direction in direction.
Continuously springing into motion and ejecting in motion in air spring 2, produces the certainly clear of air in bellows interior
Clean effect：Air stream in corrugated tube 10 inside mainly flows to logical on the bottom of corrugated tube 10 from additional vent 14
Air port 13, and along with springing into motion and ejecting the slight oscillatory in motion in air spring.On average, in corrugated tube 10
Bottom on the flow direction preferably discharged.
Flush out and sunk due to the pollution that the air of pollution produces towards the direction on chassis in the moment of the air of a small amount of pollution
Starch.
Fig. 3 shows the local of second embodiment.The rubber that here is provided with annular in the way of simple and cost advantages is first
As check device 15, this rubber element covers additional vent 14 and with simple on the inner side of corrugated tube 10 to part 21
Mode fixation is between outer guide part 9 and the retaining element 11 of corrugated tube 10.This rubber element 21 is advantageously simultaneously used for controlling
Air stream within corrugated tube 10, because air is towards the ventilation on the bottom of corrugated tube 10 when overturning (Umklappen)
The direction deflection of mouth 13.
However, according to the embodiment that figure 4 illustrates it is also possible that additional is logical in the corrugated tube 10 of elongated composition
Air port 14 is arranged on and is fixed in corrugated tube 10 in the middle section of corrugated tube 10 and for example by annular rubber element 21
On side.Alternatively longer rubber element can also be provided with the vent 14 in the middle section of corrugated tube 10, this rubber
Element is fixing by means of retaining element 11 as described in Figure 3.
Another middle operational feasibility (not shown) is using common check-valves on market and other conducting elements (sheet material etc.
Deng).
In addition in all of the embodiments described above one or more filtrations can be set in the region of additional vent 14
Element.The air that pollution thus can be stoped passes through additional vent suction.For example can be provided with based on hole size and/or whirlpool
The filter element of stream-swirling flow effect.
Reference numerals list：
1 air spring strut assembly
2 air springs
3 vibroshocks
4 air spring lids
5 air-spring pistons
6 air-spring bellows
7 scrolling scrimp portions
8 cylindrical tubes
9 outer guide parts
10 corrugated tubes
11 retaining elements
12 spaces
13 vents
14 vents
15 check devices
16 are used for controlling the device of air stream
17 spring into motion/ejection motion
18 air
19 air
20 lower seamed edges
21 rubber elements
Claims (9)
1. a kind of air spring strut assembly (1), this air spring strut assembly include air spring (2) and vibroshock (3) and
For being decayed to the vibration of motor-vehicle chassis and flexibly supporting, this air spring strut assembly is clamped in the vehicle body of motor vehicles
And chassis between, this air spring strut assembly includes：
Being clamped in air impervious mode between air spring lid (4) and air-spring piston (5), by elastomeric material system
The air-spring bellows (6) becoming, this air-spring bellows is in the case of forming scrolling scrimp portion (7) in air-spring piston
(5) upper scrolling；
The outer guide part (9) of air-spring bellows (6) is surrounded in the form of covering；
Corrugated tube (10), this ripple protection of pipe scrolling scrimp portion (7) avoids pollution and this corrugated tube fixation is in outer guide part (9)
The end of dorsad air spring lid (4) on；
Ventilation unit, for being aerated to the space (12) being surrounded by corrugated tube (10),
Wherein, described ventilation unit includes the vent (13) on the end towards chassis of corrugated tube (10), in corrugated tube
(10) it is provided with other additional vent (14) in, described vent promotes direction towards chassis internal in corrugated tube (10)
Air stream,
Wherein, it is provided with the region of described additional vent (14) for controlling in the internal air stream of corrugated tube (10)
Device (16),
Wherein, the described device (16) for controlling the air stream in bellows interior is used for guaranteeing to flow by additional ventilation
The air of mouth (14) deviates from scrolling scrimp portion (7), and includes the first section and the second section, wherein, described first section
Inwardly extend along the radial direction of vibroshock (3) from the inner surface of corrugated tube (10), and described second section is from described first
The radial inner end of section extends along the axial direction of vibroshock (3) away from described scrolling scrimp portion (7).
2. air spring strut assembly (1) according to claim 1 is it is characterised in that described additional vent (14)
Flow resistance be less than vent (13) flow resistance.
3. air spring strut assembly (1) according to claim 1 and 2 is it is characterised in that described additional vent
(14) follow fixed area setting on outer guide part (9) for the corrugated tube (10).
4. air spring strut assembly (1) according to claim 3 is it is characterised in that described additional vent (14)
It is arranged in the middle section of corrugated tube (10).
5. air spring strut assembly (1) according to claim 1 and 2 is it is characterised in that in described additional vent
(14) it is provided with check device (15) in region, this check device is at least so that air is difficult to flow out from corrugated tube (10).
6. air spring strut assembly (1) according to claim 5 it is characterised in that described check device (15) simultaneously
It is designed for controlling in the internal air stream of corrugated tube (10).
7. air spring strut assembly (1) according to claim 6 is it is characterised in that be provided with the rubber element of annular
(21), this rubber element covers additional vent (14) on the inner side of corrugated tube (10).
8. air spring strut assembly (1) according to claim 7 it is characterised in that described annular rubber element
(21) it is fixedly disposed between the retaining element of outer guide part (9) and corrugated tube (10).
9. air spring strut assembly (1) according to claim 1 and 2 is it is characterised in that in described additional vent
(14) it is provided with one or more filter elements in region.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012211491 | 2012-07-03 | ||
| DE102012211491.2 | 2012-07-03 | ||
| PCT/EP2013/062871 WO2014005847A1 (en) | 2012-07-03 | 2013-06-20 | Air spring strut |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104428558A CN104428558A (en) | 2015-03-18 |
| CN104428558B true CN104428558B (en) | 2017-03-08 |
Family
ID=48703450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380035026.3A Active CN104428558B (en) | 2012-07-03 | 2013-06-20 | air spring strut assembly |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US9435393B2 (en) |
| EP (1) | EP2870378B1 (en) |
| CN (1) | CN104428558B (en) |
| DE (1) | DE102013211644A1 (en) |
| WO (1) | WO2014005847A1 (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3027085B1 (en) * | 2014-10-09 | 2017-04-28 | Peugeot Citroen Automobiles Sa | PROTECTION SYSTEM FOR HYDRAULIC SHOCK ABSORBER COMPRISING A BELLOW AND VENTILATION DRILLS |
| JP6526991B2 (en) * | 2015-03-17 | 2019-06-05 | Ｔｏｙｏ Ｔｉｒｅ株式会社 | Air spring |
| JP6506058B2 (en) * | 2015-03-17 | 2019-04-24 | Ｔｏｙｏ Ｔｉｒｅ株式会社 | Shaft spring |
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| CN104912987A (en) * | 2015-06-29 | 2015-09-16 | 常州机电职业技术学院 | Air spring |
| DE102016202642A1 (en) * | 2016-01-29 | 2017-08-03 | Continental Teves Ag & Co. Ohg | Air spring with bellows |
| US10618366B2 (en) | 2016-07-08 | 2020-04-14 | Continental Automotive Systems, Inc. | Vehicle air strut with twist lock closure cover |
| DE102017118112A1 (en) * | 2017-08-09 | 2019-02-14 | Trigum Engineering Gmbh | Air spring with improved air bag protection |
| DE102018216994A1 (en) | 2017-10-04 | 2019-04-04 | Continental Teves Ag & Co. Ohg | Air strut with a plastic air spring cover |
| WO2019106058A1 (en) | 2017-12-01 | 2019-06-06 | Continental Teves Ag & Co. Ohg | Air suspension strut having a reinforcing core in the cover |
| WO2019143563A1 (en) * | 2018-01-19 | 2019-07-25 | Firestone Industrial Products Company, Llc | Gas spring assemblies and methods of assembling same |
| CN110259882B (en) * | 2019-06-26 | 2020-12-25 | 滁州建祺电器配件有限公司 | Special-shaped spring with auxiliary spring layer |
| US11648811B2 (en) * | 2019-07-10 | 2023-05-16 | Arnott T&P Holding, Llc | Adjustable gas spring system |
| DE102019211605A1 (en) * | 2019-08-01 | 2021-02-04 | Continental Teves Ag & Co. Ohg | Air suspension strut with a ventilated bellows connection |
| US11401994B2 (en) * | 2019-11-08 | 2022-08-02 | Continental Automotive Systems, Inc. | Air spring gaiters with floating ring |
| DE102021103856A1 (en) * | 2021-02-18 | 2022-08-18 | Vibracoustic Se | Air spring and vehicle comprising the air spring |
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| ATE242131T1 (en) * | 1999-09-17 | 2003-06-15 | Phoenix Ag | AIR SPRING ARRANGEMENT |
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| WO2013107126A1 (en) * | 2012-01-20 | 2013-07-25 | 喜临门家具股份有限公司 | Elasticity-adjustable gas pressure spring |
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2013
- 2013-06-20 US US14/411,615 patent/US9435393B2/en active Active
- 2013-06-20 DE DE102013211644.6A patent/DE102013211644A1/en not_active Withdrawn
- 2013-06-20 EP EP13732419.0A patent/EP2870378B1/en active Active
- 2013-06-20 CN CN201380035026.3A patent/CN104428558B/en active Active
- 2013-06-20 WO PCT/EP2013/062871 patent/WO2014005847A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10302495A1 (en) * | 2002-02-27 | 2003-09-04 | Phoenix Ag | Air spring unit comprises rotatable bearing which is located in zone where the piston rod enters into the container pipe, and is seated on or in the end face of the container pipe |
| CN101016927A (en) * | 2007-02-15 | 2007-08-15 | 株洲联诚集团减振器有限责任公司 | Seal structure of oil-pressure shock absorber |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2870378A1 (en) | 2015-05-13 |
| US9435393B2 (en) | 2016-09-06 |
| EP2870378B1 (en) | 2022-04-13 |
| CN104428558A (en) | 2015-03-18 |
| WO2014005847A1 (en) | 2014-01-09 |
| US20150159725A1 (en) | 2015-06-11 |
| DE102013211644A1 (en) | 2014-01-09 |
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